As enrollment at California State University soared over the last decade, the number of professors did not soar with them. But managers and supervisors increased aplenty, according to numbers compiled by faculty who are angry about the shift.

Enrollment rose by 24 percent between 2004 and 2014, while tenured and tenure-track faculty dropped by 3 percent, and managers and supervisors rose by 19 percent, the California Faculty Association reported Tuesday.

The faculty association represents about 25,000 faculty members across CSU’s 23 campuses, and much of its report—“Race to the Bottom — Salary, Staffing Priorities and the CSU’s 1%” — looks at salary information the group hopes will help in labor negotiations with the university in May.

But for students and taxpayers, the numbers paint a revealing portrait of who is teaching the more than 400,000 students at the vast university and its campuses, how the ratio of professors to administrators has changed, and what CSU and its campuses looked like before and after the recession.